datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,07 0:30:00,30 ,       0, 52.9718, 6.78199,  12.993
sgpcmbeC1.c1,2003,07 1:30:00,30 ,       0,38.07335,5.853017,9.848388
sgpcmbeC1.c1,2003,07 2:30:00,28 ,       0,32.50516,4.839675,8.281023
sgpcmbeC1.c1,2003,07 3:30:00,30 ,       0, 168.668,11.23832,32.40576
sgpcmbeC1.c1,2003,07 4:30:00,29 ,       0,91.18846,6.785168,17.35864
sgpcmbeC1.c1,2003,07 5:30:00,28 ,       0,59.38244,9.498418,15.58558
sgpcmbeC1.c1,2003,07 6:30:00,28 ,       0,103.7196,13.34076,28.10311
sgpcmbeC1.c1,2003,07 7:30:00,27 ,       0,65.87342,6.908861, 14.8987
sgpcmbeC1.c1,2003,07 8:30:00,29 ,       0,189.1711,10.33297,35.61605
sgpcmbeC1.c1,2003,07 9:30:00,30 ,       0,33.35585,4.832153,8.807054
sgpcmbeC1.c1,2003,0710:30:00,30 ,       0,210.9909,11.36828,38.71845
sgpcmbeC1.c1,2003,0711:30:00,30 ,       0,170.4219,10.46347,32.10648
sgpcmbeC1.c1,2003,0712:30:00,30 ,       0, 75.8932,9.384524,18.77003
sgpcmbeC1.c1,2003,0713:30:00,30 ,       0, 198.069,14.24557, 36.7043
sgpcmbeC1.c1,2003,0714:30:00,30 ,       0,164.7591,20.85025,41.63675
sgpcmbeC1.c1,2003,0715:30:00,30 ,       0,235.1138,16.32986, 44.1622
sgpcmbeC1.c1,2003,0716:30:00,29 ,       0,252.4168,17.53039, 49.8459
sgpcmbeC1.c1,2003,0717:30:00,29 ,       0,34.82595,4.016617,7.366027
sgpcmbeC1.c1,2003,0718:30:00,29 ,       0,53.83915,6.332015,12.95011
sgpcmbeC1.c1,2003,0719:30:00,30 ,       0,98.24348,  6.8266,19.59313
sgpcmbeC1.c1,2003,0720:30:00,30 ,       0,50.11142,5.582032,11.91116
sgpcmbeC1.c1,2003,0721:30:00,30 ,       0,18.22054,3.155127,4.791697
sgpcmbeC1.c1,2003,0722:30:00,30 ,       0,21.56428,2.676621,5.534215
sgpcmbeC1.c1,2003,0723:30:00,30 ,       0,33.22331,2.545684,6.275362